*{margin: 0;padding:0}

html{font-size: 14px;}
.menu{

	height: 80px;
	display: flex;
	flex-direction: row;
	justify-content: space-around;	
	list-style: none;
	font-size: 18px;
	align-items: center;
	background-color: white;
	position: relative;

	
	
}
.menu>li{
	padding: 5px ;
	border-bottom:4px solid transparent;
	position: relative;
	height: 45px;
}
.menu a{
	text-decoration: none;
	color:black;
}
.menu>li:nth-child(2){
	height: 40px;
	width: 1px;
	margin: 10px 0px;
	padding:0px;
	background-color: black;
}
/* iconfont图标 */
.menu>li:nth-child(3)>span{
	font-size: 20px;
	line-height:20px;
}
.menu>li:not(:nth-child(1)):hover{
	color:#86c138;
	border-bottom:4px solid #86c138	
}
.menu>li>a:hover{
	color:#86c138

}
/* 课程设置下拉框ul */
.menu>li>ul{
	width: 100px;
	background-color: white;
	/* border-radius: 10px; */
	list-style: none;
	position: absolute;
	top:55px;
	left:-2px;
	width: 0px;
	height:0px;
	opacity: 0;
	overflow: hidden;
	padding: 10px 5px;
	color:#666666;
	transition: top 0.4s linear;
	
}
.menu>li>ul a{
	color:#666666;
}
/* 课程设置下拉框li */
.menu>li>ul>li{
	
	padding:10px 10px;
	text-align: left;
	
	border-bottom: 1px dashed #666666;
	font-size: 14px;

	
}
.menu>li:nth-child(3):hover>ul{
	opacity: 1;
	width:200px;
	height: 260px;
	top:45px;
	z-index: 1;
}

.menu>li:nth-child(10):hover ul{
	opacity: 1;
	width:100px;
	height:150px;
	top:45px;
	z-index: 1;
}

.menu>li:nth-child(5):hover ul{
	opacity: 1;
	width:100px;
	height:250px;
	top:45px;
	z-index: 1;
}

/* 地址导航 */
.menu>li:nth-child(3)>ul{
	width: 200px;
	height: 250px;
}
.menu>li:nth-child(3)>ul>li{
	float: left;
}




